CN2788404Y

CN2788404Y - Switch power supply multipurpose plug

Info

Publication number: CN2788404Y
Application number: CN 200520055312
Authority: CN
Inventors: 郑淳正
Original assignee: KUANTECH (SHENZHEN) CO Ltd
Current assignee: KUANTECH (SHENZHEN) CO Ltd
Priority date: 2005-02-28
Filing date: 2005-02-28
Publication date: 2006-06-14
Anticipated expiration: 2015-02-28

Abstract

The utility model discloses a multipurpose plug for switch power supply, the aim of which is to overcome the defects of easy deformation and fatigue, and bad contact of a plug reed of the prior art. The utility model comprises a plug box composed of an upper cover and a lower cover, a movable base pin and an elastic pinch plate which are arranged in an inserting groove of the lower cover, a circuit plate arranged in the plug box, an insulating plate, an assembly connected with the movable base pin and the circuit plate, and a DC power supply line. The utility model is characterized in that assembly of the movable base pin and the circuit plate comprises two groups of assemblies which correspond to the position of the movable base pin, wherein each group comprises a tongue-shaped contact sheet, a compression spring, an inverted U-shaped contact sheet, wherein the inverted U-shaped contact sheet is fixed at the bottom of the lower cover, one end of the inverted U-shaped contact sheet is provided with an upward contact foot, and the compression spring is arranged in a space under the inverted U shape of the inverted U-shaped contact sheet. The tongue-shaped contact sheet is a crossed flat sheet, the upper end of the tongue-shaped contact sheet is arranged in a hole in the lower end of the compression spring, a middle straight line-shaped humeral stripe is arranged in a hollowness at the upper part of a flat hole of the lower cover, and the lower end of the humeral stripe is penetrated through the flat hole of the lower cover and is stretched out.

Description

The Switching Power Supply multipurpose plug

Technical field

The utility model relates to a kind of attaching plug, particularly a kind of Switching Power Supply multipurpose plug.

Background technology

For also conveniently utilizing 220 volts of voltages, the socket that adapts to the country variant standard gives small household electrical appliances chargings such as mobile phone, chargeable battery, the existing Switching Power Supply multipurpose plug sale in market now.This multipurpose plug comprises plug box that loam cake and lower cover form, is contained in the movable pin in the lower cover slot versatilely, the inner end of lower cover slot also comprises an elastic pinch plate, is contained in circuit board, insulation board, the assembly that is connected activity pin and circuit board and direct current supply line in the plug box.Above-mentioned movable pin can be made the pin that meets the U.S., Europe, China, Australia or other countries' standard respectively.When in the slot that movable pin is assembled to lower cover and after in the socket of 220 volts of power supplys of pin insertion, electric current is connected with circuit board with the assembly of circuit board by pin, connection activity pin again.Circuit in the circuit board is transported to low voltage direct current in the small domestic appliance that needs charging by direct current supply line by step-down and rectification.When needs replacing activity pin, press elastic pinch plate downwards, promptly can taking-up activity pin.

The problem that this plug exists is, the flexible member that is connected activity pin and circuit board contact chip that is comprised in the assembly of connection activity pin and circuit board is the shell fragment that a thin phosphorus copper sheet is bent into " V " font, after this shell fragment uses a period of time, be very easy to distortion and tired, therefore cause loose contact, seriously influenced the quality of product.

Summary of the invention

The purpose of this utility model is to overcome aforementioned prior art to fall into really, provide a kind of not yielding and tired, contact well, long service life, the splendid Switching Power Supply multipurpose plug of quality.

To achieve these goals, can adopt following technical scheme: the plug of this programme comprises the plug box that loam cake and lower cover are formed, be contained in the movable pin in the lower cover slot versatilely, the inner end of lower cover slot also comprises an elastic pinch plate, be contained in the circuit board in the plug box, insulation board, the assembly of connection activity pin and circuit board and direct current supply line, its improvement is that the assembly of said connection activity pin and circuit board comprises and the corresponding two groups of assemblies in the position of movable pin, and every group comprises a conductive ligulate contact chip that can contact with movable pin, a compression spring, conductive " U " font contact chip that can be connected with circuit board; " U " font contact chip that wherein falls is fixed on the interior bottom surface of lower cover, the one end has a haptic element up, after this haptic element passes hole on the insulation board, can be connected with the circuit in the circuit board, it falls and a compression spring to be housed in the lower room of " U " font, and the ligulate contact chip is flat of " a ten " font, and its upper end is contained in the hole of compression spring lower end, middle " one " font shoulder bar is contained in the recess on top, the flat hole of lower cover, and its lower end is passed the flat hole of lower cover and stretched out.

Below by drawings and Examples the utility model is described in further detail, so that such scheme is more clear.

Description of drawings

Fig. 1 is an overall schematic of the present utility model.

Fig. 2 is the perspective exploded view that constitutes parts of the present utility model.

Fig. 3 is that the solid that constitutes parts of the present utility model is decomposed elevational schematic view.

Fig. 4 is the B portion enlarged drawing of Fig. 2.

Fig. 5 is the C-C partial schematic sectional view of Fig. 4.

Concrete execution mode

Referring to Fig. 1-Fig. 5.The plug of embodiment 1 part same as the prior art comprises the plug box that loam cake 3 and lower cover 2 are formed, be contained in the movable pin 1 in lower cover 2 slots 23 versatilely, the inner end of lower cover slot 23 also comprises an elastic pinch plate 22, be contained in the circuit board 5 in the plug box, insulation board 6, the assembly of connection activity pin and circuit board and direct current supply line 4, its improved part is that the assembly of said connection activity pin and circuit board comprises and the corresponding two groups of assemblies in the position of movable pin 1, and every group comprises a conductive ligulate contact chip 9 that can contact with movable pin 1, a compression spring 8, conductive " U " font contact chip 7 that can be connected with circuit board; " U " font contact chip 7 that wherein falls is fixed on the bottom surface in the lower cover 2, the one end has a haptic element 75 up, after this haptic element 75 passes hole 61 on the insulation board 6, can be connected with the circuit in the circuit board 5, it falls and a compression spring 8 to be housed in the lower room of " U " font, ligulate contact chip 9 is flat of " a ten " font, its epimere 93 is contained in the hole of compression spring 8 lower ends, middle " one " font shoulder bar 92 is contained in the recess on top, lower cover 2 flat hole, and its lower end 91 is passed the flat hole of lower cover 2 and stretched out.Movable pin 1 shown in Fig. 2 is for meeting Unite States Standard, and movable pin 1.1 is a conform European standard, and movable pin 1.2 is for meeting British Standard, and movable pin 1.3 is for meeting the pin of Australian Standard.

When in the slot 23 that movable pin 1 is assembled to lower cover 2, two ligulate contact chips 9 contact with two pin of movable pin respectively, when again pin 1 being inserted in the socket of 220 volts of power supplys, pin 1 is jack-up ligulate contact chip 9 and compress spring 8 upwards, electric current is by pin 1, ligulate contact chip 9 and compression spring 8, the haptic element 75 of ligulate contact chip 9 one ends passes the hole 61 on the insulation board 6, is connected conducting with circuit board 5.Circuit in the circuit board is transported to low voltage direct current in the small domestic appliance that needs charging by direct current supply line 4 by step-down and rectification.When needs replacing activity pin 1, press elastic pinch plate 22 downwards, promptly can be replaced by another movable pin by taking-up activity pin 1.

Above said ligulate contact chip 9 and " U " font contact chip 7 that falls can use the metallic plate making of copper coin, alloy aluminium sheet or other conductions.

Referring to Fig. 3, Fig. 5.Embodiment 2 further improves on the basis of embodiment 1 and comes: promptly also have the boss 21 with flat hole that cooperates with ligulate contact chip 9 that stretch out downwards around the flat hole of the assembling ligulate contact chip 9 of said lower cover 2.Like this, when ligulate contact chip 9 stretches out, promptly can increase the stability of ligulate contact chip 9 downwards from the flat hole of lower cover 2 and the flat hole with the boss 21 in flat hole, can prevent its double swerve and distortion again.

Referring again to Fig. 5.Embodiment 3 comes improving on the basis of embodiment 1 or 2: on promptly said two sides 71 that fall " U " font contact chip 7 through hole 72 is arranged respectively, this contact chip 7 is riveted on the bottom surface in the lower cover 2 by this through hole 72.

Embodiment 4 improves on the basis of embodiment 3 and comes: promptly said compression spring 8 is one and goes up big, little taper compression spring 8 down; The root of said ligulate contact chip 9 epimeres 93 has the cannelure 94 of fixing above-mentioned taper compression spring 8 lower ends.This fixed form is convenient and firm.

Embodiment 5 improves on the basis of embodiment 4 and comes: the right and left of promptly said top 73 central authorities of falling " U " font contact chip 7 also respectively punching out go out the fin 74 of a compression spring downward perk, fixing 8 upper ends.This fixed form is convenient and firm, also is most preferred embodiment of the present utility model.

The utility model has the advantages that: the component design that connects movable base pin and circuit board is closed Reason, advanced person, its ligulate contact chip is stable, firm, can not swing, extremely difficult distortion And fatigue, make the quality of Switching Power Supply multipurpose plug improve a class.

Claims

1. Switching Power Supply multipurpose plug, comprise the plug box that loam cake and lower cover are formed, be contained in the movable pin in the lower cover slot versatilely, the inner end of lower cover slot also comprises an elastic pinch plate, be contained in the circuit board in the plug box, insulation board, the assembly of connection activity pin and circuit board and direct current supply line, the assembly that it is characterized in that said connection activity pin and circuit board comprises and the corresponding two groups of assemblies in the position of movable pin that every group comprises a conductive ligulate contact chip that can contact with movable pin, a compression spring, conductive " U " font contact chip that can be connected with circuit board; " U " font contact chip that wherein falls is fixed on the interior bottom surface of lower cover, the one end has a haptic element up, after this haptic element passes hole on the insulation board, can be connected with the circuit in the circuit board, it falls and a compression spring to be housed in the lower room of " U " font, and the ligulate contact chip is flat of " a ten " font, and its upper end is contained in the hole of compression spring lower end, middle " one " font shoulder bar is contained in the recess on top, the flat hole of lower cover, and its lower end is passed the flat hole of lower cover and stretched out.

2. Switching Power Supply multipurpose plug according to claim 1 is characterized in that also having the boss with flat hole that cooperates with the ligulate contact chip that stretch out downwards around the flat hole of the assembling ligulate contact chip of said lower cover.

3. Switching Power Supply multipurpose plug according to claim 1 and 2 is characterized in that on said two sides that fall " U " font contact chip a through hole being arranged respectively, and this contact chip is riveted on the bottom surface of lower cover by this through hole.

4. Switching Power Supply multipurpose plug according to claim 3 is characterized in that said compression spring is one and goes up big, following little taper compression spring; The root of said ligulate contact chip epimere has the cannelure of a fixing above-mentioned taper compression spring lower end.

5. Switching Power Supply multipurpose plug according to claim 4, the right and left that it is characterized in that said center of top of falling " U " font contact chip also respectively punching out go out the fin of a compression spring downward perk, fixing upper end.